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LT8650SPJVPBF 数据表(PDF) 3 Page - Analog Devices

部件名 LT8650SPJVPBF
功能描述  Dual Channel 6A, 42V, Synchronous Step-Down Silent Switcher 2 with 6.2μA Quiescent Current
PDF  34 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

LT8650SPJVPBF 数据表(HTML) 3 Page - Analog Devices

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LT8650SP
3
Rev. B
For more information www.analog.com
ELECTRICAL CHARACTERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
l
2.6
3
V
VIN1 Quiescent Current in Shutdown VEN/UV1 = VEN/UV2 = 0V, VSYNC = 0V
l
1.7
4
10
µA
µA
VIN1 + VCC Quiescent Current in
Sleep with Internal Compensation
VEN/UV1 = VEN/UV2 = 2V, VFB1 = VFB2 >0.8V, VVC1 = VVC2 = VCC,
VSYNC = 0V
l
3.7
8
20
µA
µA
VIN1 + VCC Quiescent Current in
Sleep with External Compensation
VEN/UV1 = VEN/UV2 = 2V, VFB1 = VFB2 >0.8V, VVC1 = VVC2 = Float,
VSYNC = 0V
l
90
120
140
µA
µA
VIN1 + VCC Quiescent Current when
Active
VEN/UV1 = VEN/UV2 = 2V, VFB1 = VFB2 >0.8V, VVC1 = VVC2 = VCC, VSYNC = 3.4V l
5
7
mA
VIN Current in Regulation
VIN = 12V, VOUT = 3.3V, Output Load = 100µA, VVC1 = VVC2 = VCC, VSYNC = 0V
VIN = 12V, VOUT = 3.3V, Output Load = 1mA, VVC1 = VVC2 = VCC, VSYNC = 0V
45
350
75
550
µA
µA
Feedback Reference Voltage
l
0.794
0.790
0.800
0.800
0.806
0.810
V
V
Feedback Voltage Line Regulation
VIN = 4.0V to 36V
0.004
0.02
%/V
Feedback Pin Input Current
VFB = 0.8V
–20
20
nA
Minimum On-Time
ILOAD = 3A, SYNC ≥ 2V
l
40
60
ns
Oscillator Frequency
RT = 133k
RT = 35.7k
RT = 15k
l
l
l
270
0.94
1.85
300
1.0
2.00
330
1.06
2.15
kHz
MHz
MHz
Top Power NMOS Current Limit
13
15
17
A
Bottom Power NMOS Current Limit
7.5
10
13
A
SW Leakage Current
VIN = 42V, VSW = 0V,42V
–2
2
µA
EN/UV Pin Threshold
EN/UV Falling
l
0.7
0.74
0.78
V
EN/UV Pin Hysteresis
30
mV
EN/UV Pin Current
VEN/UV = 2V
–20
20
nA
PG Upper Threshold Offset from VFB VFB Falling
l
5.4
7.2
9
%
PG Lower Threshold Offset from VFB VFB Rising
l
–9.3
–7.5
–5.7
%
PG Hysteresis
0.3
%
PG Leakage
VPG = 12V
–40
40
nA
PG Pull-Down Resistance
VPG = 0.1V
l
600
1200
Ohm
SYNC Threshold
SYNC DC and Clock Low Level Voltage
SYNC Clock High Level Voltage
SYNC DC High Level Voltage
0.4
1.5
2.8
V
V
V
SYNC Pin Current
VSYNC = 6V
120
µA
SS Source Current
l
1.0
2.0
3.0
µA
SS Pull-Down Resistance
Fault Condition, SS = 0.1V
200
Ω
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.



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